section {
	margin: 3rem auto;
	width: 70.5625rem;
	position: relative;
}

section table {
	margin: 0 5rem 0 6rem;
}

section td {
	text-align: center;
	padding: 1rem 1rem;
}

section .title {
	margin-top: 0rem;
	text-align: center;
}

section .bg-top {
	background: url(../img/handbook/bg_border_top.png);
	height: 3.6875rem;
	width: 70.5625rem;
}

section .bg-left {
	float: left;
	width: 70.625rem;
	background: #fbf2dc url(../img/handbook/bg_border_left.png) repeat-y;
}

section .bg-right {
	float: left;
	background: url(../img/handbook/bg_border_right.png) right repeat-y;
	width: 70.55rem;
}

section .bg-bottom {
	float: left;
	background: url(../img/handbook/bg_border_foot.png);
	height: 3.6875rem;
	width: 70.5625rem;
}

.bookmarks,
.bookmarks-w {
	position: fixed;
	margin-left: -12rem;
	z-index: -1;
	transition: all 0.3s;
}

.bookmark,
.bookmark-w {
	background: url(../img/bookmark.png) no-repeat;
	padding: 0.55rem 4rem;
	padding-left: 5.5rem;
	font-size: 1.5rem;
	z-index: -1;
	color: #000000;
	transition: all 0.3s;
}

.bookmark:hover {
	background-position-x: -2.5rem;
	padding-left: 3rem;
}

.bookmarks-w {
	margin-left: -17rem;
}

.bookmark-w:hover {
	background-position-x: -2.5rem;
	padding-left: 0.4rem;
}

footer {
	float: left;
	width: 100%;
}

.footer-left,
.footer-rigt {
	margin: 0 auto;
}

.footer-left {
	margin-right: 0;
}

.footer-rigt {
	margin-left: 0;
}

/*生物图鉴*/
.Biologys {
	margin: 0 5rem 0 6rem;
}

.Biologys a {
	color: black;
}

.Biologys strong {
	font-size: 30px;
}

.Biologys p,
.Biologys hr {
	margin-bottom: 0rem;
}

.Biologys hr {
	margin: 0 0;
	border-top: 2px solid rgba(0, 0, 0, .1);
}

.Biologys img {
	cursor: pointer;
}